The Holley HP series carburetors have been the standard in racing carburetors for nearly two decades! So how do you make them better? You make the new Holley Ultra XP Aluminum Carburetors 38% lighter, increase the fuel capacity by 20% and add 30 other new features! They're available in all-new Hard Core Gray hard coat anodized finish with Black billet for improved corrosion protection. They're also available in natural tumble-polished aluminum with your choice of Black or Red metering blocks and base plate. These carburetors are available in 600, 650, 750, 850, and True 950-CFM sizes!

Note: New lengthened fuel line required due to increased length of bowls

Updated Main Body Design

Air bleeds moved outward to allow a smoother transition of airflow from the top of the carburetor into the venturi

Integrated idle bypass valve eliminates the need for holes in throttle plates and allows
for proper adjustment of idle while maintaining correct throttle plate to transfer slot
relationship. Helps maintain good idle control when using radical camshafts.

All unnecessary mounting bosses removed for a smoother, cleaner appearance